Historic Residence on San Francisco Bay
When these new, super elastic wetsuits came out around fifteen years ago, I started swimming in the Bay several times a week for exercise. The wesuits are great. You get up in the morning and put them on like a leotard. Swim for a half hour and then take them off in the shower. I tend to use a boogie board and fins to get more distance.
You get tracked by seals, see hundreds of birds and get a fabulous view of the City from the middle of the Bay. It beats the heck out of a health club.